Cage for a sectorial antifriction bearing

ABSTRACT

Support pins of a locating device for resetting the position of a cage of a sectorial antifriction bearing--if the cage deviates from its specified position. In order to arrange the support pins reliably securely and at low cost on the cage, the cage is constructed as a solid one and is provided with at least one of the pins which extends parallel with the pockets for the rolling elements and which protrudes beyond the width of the cage.

The present invention relates to a cage for a sectorial antifrictionbearing wherein support pins of a locating device for resetting thecage, if it deviates from its specified position, are arranged on thecage, and in which the cage is a solid one and least one pin extendsparallel with the pockets for the rolling elements and protrudes beyondthe width of the cage.

A locating device for the cage of a sectorial antifriction bearing isknown from German application No. DE-OS-26 25 298, according to which aresilient guide fork encompasses a support pin joined to the cage andexerts a restoring force on the cage if the latter deviates from itsspecified position. Such devices are used for mounting the cradle of aswash-plate machine.

It has been found that in practice it is difficult to arrange thesupport pin on the cage,. This is because the latter is a flat metalstrip and the restoring forces occurring at the support pin/cage jointcause rapid wear of the cage and guide fork.

It is an aim of the invention to improve a cage of the kind referred toin the opening paragraph in such a way that the support pins can bearranged by simple means securely, reliably and at low cost on the cageso that the occurring normally restoring forces will not cause any wear.

The invention will now be explained with reference to one embodimentthereof:

FIG. 1 is a front view of a sectorial antifriction bearing including acage according to the invention;

FIG. 2 is a side view, in cross-section, at line A- B- of FIG. 1;

FIG. 3 is a view in the direction of the arrow "X" in FIG. 1;

FIG. 4 is a view illustrating the arrangement of a bush on eachprotruding end portion of a pin; and

FIG. 5 is a view illustrating the arrangement of an antifriction bearingon each protruding end portion of the pin.

A sectorial antifriction bearing comprises an outer-race sector 1 onwhich rolling elements 2 are arranged to roll. The latter are disposedin pockets of a cage sector 3, each pocket being arranged to accommodatethe rolling elements of two respective annular rows. An inner race (notillustrated) is formed by a cradle. A bore extending parallel with thecage pockets is arranged at each end portion at the circumferential endsof the cage or, optionally, within the cage. A pin 4 is disposed in eachof the bores, protrudes beyond the width of the cage and serves as asupport pin for a resilient guide fork (not illustrated). Each pin 4 isextrusion coated with cage material and extends parallel to the cagepockets. As a result, the occurring restoring forces applied by theguide fork can securely, wear-resistantly and at low cost be transmittedto the cage.

A bush 5 which interacts with the guide fork, is arranged on eachprotruding end portion of the pin 4 so as to reduce any friction whichmay occur. An antifriction bearing 6, instead of the bush, may bearranged on the pin 4.

We claim:
 1. A cage for a sectorial antifriction bearing, the cageincluding a solid body in the shape of an arcuate sector having oppositecircumferential ends, the cage also having opposite lateral sides, aplurality of parallel pockets extending in a direction across the solidcage body and toward the lateral sides, each pocket for receiving anantifriction bearing rolling element therein;at least one support pinlocated toward at least each end of the cage body and extending parallelto the pockets and extending of a length to protrude beyond one lateralside of the cage for cooperating with a locating device for resettingthe cage.
 2. The cage of claim 1, wherein there is a respective pin ateach opposite lateral side at each arcuate end of the cage.
 3. The cageof claim 2, wherein the cage body has a respective bore therein for eachof the pins, and each of the bores extending parallel to the directionof extension of the pockets for holding and positioning and orientingthe respective pins in the bores.
 4. The cage of claim 1, wherein thereis a respective pin at each lateral side of the cage.
 5. The sectorialantifriction bearing of claim 1, wherein the cage body has a respectivebore therein for each of the pins, and each of the bores extendingparallel to the direction of extension of the pockets for holding andpositioning and orienting the respective pins in the bores.
 6. The cageof claim 1, wherein the cage is comprised of a cage material and eachpin is extrusion coated with the cage material.
 7. The cage of claim 1,further comprising a bush rotatably arranged on each of the pins.
 8. Thecage of claim 1, further comprising an antifriction bearing arranged oneach of the pins.